164446749 has 24 divisors (see below), whose sum is σ = 248257152. Its totient is φ = 104791680.

The previous prime is 164446741. The next prime is 164446783. The reversal of 164446749 is 947644461.

164446749 is a `hidden beast` number, since 164 + 446 + 7 + 49 = 666.

It is not a de Polignac number, because 164446749 - 2³ = 164446741 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (164446741) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 13669 + ... + 22709.

It is an arithmetic number, because the mean of its divisors is an integer number (10344048).

Almost surely, 2^164446749 is an apocalyptic number.

It is an amenable number.

164446749 is a deficient number, since it is larger than the sum of its proper divisors (83810403).

164446749 is a wasteful number, since it uses less digits than its factorization.

164446749 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9137 (or 9134 counting only the distinct ones).

The product of its digits is 580608, while the sum is 45.

The square root of 164446749 is about 12823.6792302365. The cubic root of 164446749 is about 547.8669436049.

The spelling of 164446749 in words is "one hundred sixty-four million, four hundred forty-six thousand, seven hundred forty-nine".